Betty is _______careful as I, but I’m _____ than you.
| A．as; much careful | B．so; more careful |
| C．as; much more careful | D．so; very carefu |
I bet you’ll look cool and feel cool ________
| A．with something in | B．with nothing on | C．in something with | D．with nothing in |
Leaves fall _______piles ________the ground
| A．into; upon | B．upon; into | C．onto; off | D．into; onto |
They think wolves are dangerous _________humans so this leads _______the danger of wolves.
| A．for; to | B．as; for | C．to; to | D．at; in |
Wolves often work __________a team and they never kill for __________.
| A．as; funny | B．for; fun | C．as; fun | D．for; funny |
We should tell hunters _______tigers.
| A．don’t kill | B．not kill | C．killing | D．not to kill |